package/harfbuzz: fix build without threads

Fix the following build failures without threads by defining HB_NO_MT as
specified in https://github.com/harfbuzz/harfbuzz/blob/main/CONFIG.md:

In file included from ../src/hb.hh:458,
                 from ../src/hb-blob.cc:28:
../src/hb-mutex.hh:88:2: error: #error "Could not find any system to define mutex macros."
   88 | #error "Could not find any system to define mutex macros."
      |  ^~~~~

This build failure is raised since bump to version 2.8.1 in commit
e9ba1c80e8ebf5f5ad9d889d2dd37f27af87e811 and
https://github.com/harfbuzz/harfbuzz/commit/711c241f6c7e18c5403602375a733af74df76f83
which removed busyloop mutex implementation.

Fixes:
 - http://autobuild.buildroot.org/results/0c03aca5e3ade735b54b0b9233896b868aec1520

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/harfbuzz/harfbuzz.mk b/package/harfbuzz/harfbuzz.mk
index f327a95eb6cbdeeb3439578ddbd3bbb33f8f5c89..c7f5dfe9d229f562ecdda7ffdb6f94659aa6b61e 100644 (file)
--- a/package/harfbuzz/harfbuzz.mk
+++ b/package/harfbuzz/harfbuzz.mk
@@ -90,5 +90,9 @@ else
 HARFBUZZ_CONF_OPTS += -Dicu=disabled
 endif
 
+ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),)
+HARFBUZZ_CXXFLAGS += $(TARGET_CXXFLAGS) -DHB_NO_MT
+endif
+
 $(eval $(meson-package))
 $(eval $(host-meson-package))